Here is the comparison plot: http://n1eu.com/566.gif
Yellow is my 566, purple is your 2400Hz audio and aqua is your 2410Hz
audio. As Onno suggested, please make sure you don't have notch filter (or
NB, NR, SAF, AN) engaged. Also, did you have a pair of headphones,
external speaker or anything else connected to the audio outputs other than
the soundcard? Both of your audio passbands are very abnormal.
73, Barry N1EU
On Tue, Mar 25, 2014 at 10:51 PM, John Huffman <hjohnc@gmail.com> wrote:
> Your measurements are much cleaner than mine. I will get you the audio
> files.
>
> 73 de K1ESE
> John
>
>
>
> On 3/25/2014 6:24 PM, Barry N1EU wrote:
>
>> This is what the 566spectrum should look like at 2400Hz BW and PBT at 0:
>> My RX EQ is also at 0.
>>
>> http://n1eu.com/566_2400.gif
>>
>> 73, Barry N1EU
>>
>>
>> On Tue, Mar 25, 2014 at 9:57 PM, John Huffman <hjohnc@gmail.com> wrote:
>>
>> Barry -
>>>
>>> I did a spectrum scan at 2.400kHz -
>>> https://www.dropbox.com/s/ewsom5vouqqzxho/2r400khz.jpg
>>>
>>> And one at 2.410kHz -
>>> https://www.dropbox.com/s/22406qhdaknb7b9/2r410khz.jpg
>>>
>>> Very different.
>>>
>>> 73 de K1ESE
>>> John
>>>
>>> On 3/25/2014 4:50 PM, Barry N1EU wrote:
>>>
>>> John, if you're able to make a WAV recording with a soundcard off your
>>>> 566's audio output, please record ten seconds of band noise at 2400hz
>>>> selectivity in USB with PBT at 0 and email it to me. I'll run the
>>>> spectrum
>>>> on it and compare with my 566 and create a plot showing the two
>>>> compared.
>>>>
>>>> 73, Barry N1EU
>>>>
>>>>
>>>> On Tue, Mar 25, 2014 at 7:56 PM, John Huffman <hjohnc@gmail.com> wrote:
>>>>
>>>>
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